FVXX20 KWBC 211546 VOLCANIC ASH ADVISORY ISSUED: 2003NOV21/1600Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2003/517 INFORMATION SOURCE: GOES-12 IMAGERY. GEOPHYSICAL INSTITUTE. UPPER AIR SOUNDING. ERUPTION DETAILS: OCCASIONAL ASH EMISSIONS OBS ASH DATE/TIME: 21/1515Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/200 MOVING W 10 KNOTS. FCST ASH CLOUD+6H: SEE SIGMETS REMARKS: THERE IS CLOUD COVER OVER THE SUMMIT AND NO HOTSPOT OR ASH IS OBSERVED. GEOPHYSICAL INSTITUTE INDICATES CLOUD COVER MAKES IT DIFFICULT TO VIEW THE SUMMIT AT THIS TIME SO WILL CONTINUE THE ADVISORY. BALDWIN NEXT ADVISORY: WILL BE ISSUED BY 2003NOV21/2200Z NNNN